Southwest Airlines Terminal PHX maintains a significant presence at Phoenix Sky Harbor International Airport, with operations centered on Terminal 4. This terminal is well-equipped to accommodate the high volume of Southwest flights, with check-in counters, self-service kiosks, and separate baggage claim sections for the airline. Terminal 4 also has a variety of eating options for customers who want to dine before their flight, and the gates are designed to make it easier for Southwest passengers to board and exit.Southwest Airlines Terminal PHX maintains a significant presence at Phoenix Sky Harbor International Airport, with operations centered on Terminal 4. This terminal is well-equipped to accommodate the high volume of Southwest flights, with check-in counters, self-service kiosks, and separate baggage claim sections for the airline. Terminal 4 also has a variety of eating options for customers who want to dine before their flight, and the gates are designed to make it easier for Southwest passengers to board and exit.